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Finding the Fourth Proportional to 64,461.60, 96,562.80 and 36,727.20

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Solution

The fourth proportional to 64,461.60, 96,562.80 and 36,727.20 is: 55,016.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,461.60 : 96,562.80 = 36,727.20 : x
  2. Step 2: Convert to fraction form
    64,461.60/96,562.80 = 36,727.20/x
  3. Step 3: Cross multiply
    64,461.60x = 96,562.80 × 36,727.20
  4. Step 4: Simplify right side
    64,461.60x = 3,546,481,268.16
  5. Step 5: Solve for x
    x = 3,546,481,268.16/64,461.60
  6. Step 6: Final answer
    x = 55,016.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.